feat!: BREAKING CHANGE - replace jQueryUI with SortableJS

[ghiscoding]

This PR does

• replace jQueryUI with SortableJS
• replace jquery.event.drag-2.3.0.js and jquery.mousewheel.js with a new file slick.interactions.js
  • jquery.mousewheel.js is now totally useless, however jquery.event.drag will be used when imported or else default to slick.interactions
• for more info, read SlickGrid 3.0 Wiki
• the new minified versions will be provided in a future PR
  • Note that 1 Cypress E2E test is currently failing because Example 4 has reference to these minified files which are not yet included
  • the minified files will be created by running npm run minify script
• this PR will be merged to the next branch first (not master)
• fixes issue remove jQueryUI Sortable dependency #541 and Drag is not working in Mobile mode #488

[ghiscoding]

@6pac
This is the 1st PR, another PR will follow with minified files but I wanted to have a smaller PR for you to review. The "Example4 (most comprehensive)" will not work without these new minified files (next PR) but everything else will work. You can run npm run minify to get the minified files. Also note that this PR is to be merged to the next branch (not master), so you don't have to worry about merging too early, I'll work on adding version bump script in a future PR as well. So give it a try and let me know, please merge (to next) when you're ready (we're not going to merge to master until couple more weeks but let's merge this one in the next couple days if you can and don't worry about the failing test for now)

Oh and I also forgot to mention, I`ve done all changes and tests for all my 3 libs and I'm good to go. At this point it's basically the scripts that I promised for version automation and for you to give feedback and we should be good to release quite soon. Cheers

[ghiscoding]

will merge now since a few more PRs are expected to come quite soon on this next branch